Fast and clean tabbed style PDF reader & editor, which make reading & editing enjoyable and efficient.

Key features:

* Tabbed style window;
* PDF Pages Editing;
* Provides themes, including night mode;
* Annotate PDF;
* Split view;
* Outline editing;
* In-document bookmarking;
* Tabbed style sidebar;
* Clean and powerful toolbar;
* Powerful searching capabilities;

Please feel free to drop us an email ( if any question.

What’s New

Version 3.0.26

Fixed a couple of bugs for annotation.

Ratings and Reviews

3.4 out of 5
53 Ratings
53 Ratings
NeedNameThatIstTaken ,


I've now used it for two months and it's the best PDF reader I've experience for reading academic articles. It's snappy and reminds me of replacing my web browser with Chrome when it first came out. Can easily add native PDF annotations and search through the existing ones. (And it saves them fast when you close the file. Competitors either do this slowly or, like Skim, use a non-native annotation format that can't be read by other PDF readers.) Draggable tabs. Plays nicely with Zotero. The UI for "find" displays a lot of info intuitively. Everything is just well designed. I haven't yet run into a limitation on the free version, and upgrading to pro is only $20 anyways.

It used to crash from time to time when it came out in late 2017, but this appears to have been fixed as of Feburary 2018! (That's why I'm upgrading my review from 4 stars to 5 stars.) If there are old reviews complaining about crashes, keep that in mind.

I prefer it over these other PDF readers on maxOS that I have tried: FoxIt, Preview, Adobe Acrobat Reader, Skim.

Developer Response ,

Thanks, good to know that, It's our honour.
We will try our very best!


Difference b/w pro and free?

I was really liking this but I didn’t understand the difference between free and pro. I opened it one time and saw my older pdfs were missing? Maybe there is a limitation on how many you can have in the free version? I didn’t know how to find my old pdfs because there isn’t an easy folder function within the app. I ended up pressing the trash can to see if they were there and it deleted everything I had! There doesn’t seem to be a way to recover them. While this easily lets you add to pdfs (which is great for taking notes during class), I think there are some organizational issues.

Z0r06 ,

Excellent replacement of Mac Preview

After Mac Preview broke how it displays highlights and comments, I went on a search of a PDF reader that was compatible with standard PDF markup and could display the comments in a sidebar along with their colors. This is the only program I’ve found that fits the bill. PDF Guru does not allow you to *EDIT* the PDFs (e.g., insert or alter text). It’s fantastic, however, for reading and commenting on PDFs.


Kun Wei
5.4 MB

OS X 10.11 or later, 64-bit processor



Age Rating
Rated 4+
© Chromiumacx Soft


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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